Pacific koel

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Pacific koel
Pacific koel male kob08.JPG
Pacific koel fem kob08.JPG
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Cuculiformes
Family: Cuculidae
Genus: Eudynamys
E. orientalis
Binomial name
Eudynamys orientalis
(Linnaeus, 1766)
Distribution of the Pacific koel in turquoise (also outside the map in southeast Australia)

Cuculus orientalis Linnaeus, 1766

The Pacific koel (Eudynamys orientalis), also known as the eastern koel, is a species of cuckoo in the family Cuculidae. In Australia, it is colloquially known as the rainbird or stormbird, as its call is usually more prevalent before or during stormy weather.


It has often been considered conspecific with the Asian and black-billed koels, but they are increasingly treated as a separate species.[2][3] Alternatively, the population breeding in Australia has been considered a separate species, the Australian Koel (Eudynamys cyanocephalus[4]), with the remaining taxa then considered subspecies of the Asian koel.[5]

Distribution and habitat[edit]

The Pacific koel is found in forest, woodland, plantations and gardens from Wallacea east to the Solomon Islands and south to northern and eastern Australia. The Pacific koel has not been rated by IUCN, but the Australian Koel (here included in the Pacific koel) is considered to be of Least Concern.[1]


The two types of vocalizations of the Pacific koel.

The Pacific koel is a brood parasite. In Australia, their hosts are mainly large honeyeaters (especially noisy friarbirds and red wattlebirds).[6] Unlike in other parasitic cuckoos, the young do not attempt to kill the host chicks. This trait is shared with the channel-billed cuckoo, which – as in the Pacific koel – are largely frugivorous as adults.[7] A study of vocalization noted that the duetting behaviour may indicate the possibility of short-term pair-bonding in its otherwise polygynous mating system.[8]



  1. ^ a b BirdLife International (2012). "Eudynamys orientalis". IUCN Red List of Threatened Species. 2012. Retrieved 16 July 2012.
  2. ^ Gill, F., Wright, M. & Donsker, D. (2009). IOC World Bird Names (version 2.0). Accessed 21-04-2009.
  3. ^ Christidis, L. & Boles, W. E. (2008). Systematics and Taxonomy of Australian Birds. ISBN 978-0-643-06511-6
  4. ^ David, N., & Gosselin, M. (2002). The grammatical gender of avian genera. Bull B.O.C. 122: 257-282.
  5. ^ Clements, J. F. (2007). The Clements Checklist of the Birds of the World. 7th edition. Christopher Helm. ISBN 978-0-7136-8695-1
  6. ^ Payne, R. B. (2005). The Cuckoos. Oxford University Press. ISBN 0-19-850213-3.
  7. ^ Broom, M., Ruxton, G. D., & Kilner, R. M. (2007). Host life-history strategies and the evolution of chick-killing by brood parasitic offspring. Behavioral Ecology doi:10.1093/beheco/arm096 Full text.
  8. ^ Maller, C. J., & Jones, D. N. (2001). Vocal behaviour of the Common Koel, Eudynamys scolopacea, and implications for mating systems. Emu 101(2):105-112